Home / 13,115,135.91-18,100,188.77-9,801,675.39

Finding the Fourth Proportional to 13,115,135.91, 18,100,188.77 and 9,801,675.39

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Solution

The fourth proportional to 13,115,135.91, 18,100,188.77 and 9,801,675.39 is: 13,527,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115,135.91 : 18,100,188.77 = 9,801,675.39 : x
  2. Step 2: Convert to fraction form
    13,115,135.91/18,100,188.77 = 9,801,675.39/x
  3. Step 3: Cross multiply
    13,115,135.91x = 18,100,188.77 × 9,801,675.39
  4. Step 4: Simplify right side
    13,115,135.91x = 177,412,174,772,255
  5. Step 5: Solve for x
    x = 177,412,174,772,255/13,115,135.91
  6. Step 6: Final answer
    x = 13,527,284.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.